The reversals are spotted when there is a hollow candlestick engulfing a filled one or vice versa (red and green if you are using a chart program with colors.) Don’t get caught up in anything involving a doji – those are pretty easy to engulf.

If the market was in an apparent uptrend and a hollow (or green) candlestick is engulfed by a filled (or red) one, this might be a signal of a bearish reversal. The second candlestick shows that the market opened above the prior closing price and then selling pressure came in and the market was pushed below the prior opening price.